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author | Linus Torvalds | 2009-03-26 19:04:08 +0100 |
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committer | Linus Torvalds | 2009-03-26 19:04:08 +0100 |
commit | ada19a31a90b4f46c040c25ef4ef8ffc203c7fc6 (patch) | |
tree | 7d523d2d90dbaa973c5843d6219ec149b5949243 /arch/x86/kernel/cpu/cpufreq/sc520_freq.c | |
parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmo... (diff) | |
parent | [CPUFREQ] Prevent p4-clockmod from auto-binding to the ondemand governor. (diff) | |
download | kernel-qcow2-linux-ada19a31a90b4f46c040c25ef4ef8ffc203c7fc6.tar.gz kernel-qcow2-linux-ada19a31a90b4f46c040c25ef4ef8ffc203c7fc6.tar.xz kernel-qcow2-linux-ada19a31a90b4f46c040c25ef4ef8ffc203c7fc6.zip |
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq: (35 commits)
[CPUFREQ] Prevent p4-clockmod from auto-binding to the ondemand governor.
[CPUFREQ] Make cpufreq-nforce2 less obnoxious
[CPUFREQ] p4-clockmod reports wrong frequency.
[CPUFREQ] powernow-k8: Use a common exit path.
[CPUFREQ] Change link order of x86 cpufreq modules
[CPUFREQ] conservative: remove 10x from def_sampling_rate
[CPUFREQ] conservative: fixup governor to function more like ondemand logic
[CPUFREQ] conservative: fix dbs_cpufreq_notifier so freq is not locked
[CPUFREQ] conservative: amend author's email address
[CPUFREQ] Use swap() in longhaul.c
[CPUFREQ] checkpatch cleanups for acpi-cpufreq
[CPUFREQ] powernow-k8: Only print error message once, not per core.
[CPUFREQ] ondemand/conservative: sanitize sampling_rate restrictions
[CPUFREQ] ondemand/conservative: deprecate sampling_rate{min,max}
[CPUFREQ] powernow-k8: Always compile powernow-k8 driver with ACPI support
[CPUFREQ] Introduce /sys/devices/system/cpu/cpu*/cpufreq/cpuinfo_transition_latency
[CPUFREQ] checkpatch cleanups for powernow-k8
[CPUFREQ] checkpatch cleanups for ondemand governor.
[CPUFREQ] checkpatch cleanups for powernow-k7
[CPUFREQ] checkpatch cleanups for speedstep related drivers.
...
Diffstat (limited to 'arch/x86/kernel/cpu/cpufreq/sc520_freq.c')
-rw-r--r-- | arch/x86/kernel/cpu/cpufreq/sc520_freq.c | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/arch/x86/kernel/cpu/cpufreq/sc520_freq.c b/arch/x86/kernel/cpu/cpufreq/sc520_freq.c index 42da9bd677d6..435a996a613a 100644 --- a/arch/x86/kernel/cpu/cpufreq/sc520_freq.c +++ b/arch/x86/kernel/cpu/cpufreq/sc520_freq.c @@ -19,17 +19,19 @@ #include <linux/delay.h> #include <linux/cpufreq.h> +#include <linux/timex.h> +#include <linux/io.h> #include <asm/msr.h> -#include <asm/timex.h> -#include <asm/io.h> #define MMCR_BASE 0xfffef000 /* The default base address */ #define OFFS_CPUCTL 0x2 /* CPU Control Register */ static __u8 __iomem *cpuctl; -#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, "sc520_freq", msg) +#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, \ + "sc520_freq", msg) +#define PFX "sc520_freq: " static struct cpufreq_frequency_table sc520_freq_table[] = { {0x01, 100000}, @@ -43,7 +45,8 @@ static unsigned int sc520_freq_get_cpu_frequency(unsigned int cpu) switch (clockspeed_reg & 0x03) { default: - printk(KERN_ERR "sc520_freq: error: cpuctl register has unexpected value %02x\n", clockspeed_reg); + printk(KERN_ERR PFX "error: cpuctl register has unexpected " + "value %02x\n", clockspeed_reg); case 0x01: return 100000; case 0x02: @@ -51,7 +54,7 @@ static unsigned int sc520_freq_get_cpu_frequency(unsigned int cpu) } } -static void sc520_freq_set_cpu_state (unsigned int state) +static void sc520_freq_set_cpu_state(unsigned int state) { struct cpufreq_freqs freqs; @@ -76,18 +79,19 @@ static void sc520_freq_set_cpu_state (unsigned int state) cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); }; -static int sc520_freq_verify (struct cpufreq_policy *policy) +static int sc520_freq_verify(struct cpufreq_policy *policy) { return cpufreq_frequency_table_verify(policy, &sc520_freq_table[0]); } -static int sc520_freq_target (struct cpufreq_policy *policy, +static int sc520_freq_target(struct cpufreq_policy *policy, unsigned int target_freq, unsigned int relation) { unsigned int newstate = 0; - if (cpufreq_frequency_table_target(policy, sc520_freq_table, target_freq, relation, &newstate)) + if (cpufreq_frequency_table_target(policy, sc520_freq_table, + target_freq, relation, &newstate)) return -EINVAL; sc520_freq_set_cpu_state(newstate); @@ -116,7 +120,7 @@ static int sc520_freq_cpu_init(struct cpufreq_policy *policy) result = cpufreq_frequency_table_cpuinfo(policy, sc520_freq_table); if (result) - return (result); + return result; cpufreq_frequency_table_get_attr(sc520_freq_table, policy->cpu); @@ -131,7 +135,7 @@ static int sc520_freq_cpu_exit(struct cpufreq_policy *policy) } -static struct freq_attr* sc520_freq_attr[] = { +static struct freq_attr *sc520_freq_attr[] = { &cpufreq_freq_attr_scaling_available_freqs, NULL, }; @@ -155,13 +159,13 @@ static int __init sc520_freq_init(void) int err; /* Test if we have the right hardware */ - if(c->x86_vendor != X86_VENDOR_AMD || - c->x86 != 4 || c->x86_model != 9) { + if (c->x86_vendor != X86_VENDOR_AMD || + c->x86 != 4 || c->x86_model != 9) { dprintk("no Elan SC520 processor found!\n"); return -ENODEV; } cpuctl = ioremap((unsigned long)(MMCR_BASE + OFFS_CPUCTL), 1); - if(!cpuctl) { + if (!cpuctl) { printk(KERN_ERR "sc520_freq: error: failed to remap memory\n"); return -ENOMEM; } |